Standard exhaust

**Sun Jul 27, 2014 9:19 am » Post: #1 » Download Post**

I was wondering if the standard exhaust system for a 21 and 28 are different?
I can see that they have different partnumbers but I want to be sure.

Same question for the mufflers. Are they different?

**Sun Jul 27, 2014 1:05 pm » Post: #2 » Download Post**

Different, and different.
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Andy.
NSR-WORLD.COM

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**Sun Jul 27, 2014 1:29 pm » Post: #3 » Download Post**

Thanks!

**Sun Jul 27, 2014 1:50 pm » Post: #4 » Download Post**

Both the MC21 chambers and silencers are better (less restrictive) than the MC28s, however they are not a direct replacement.
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Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

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**Sun Jul 27, 2014 6:52 pm » Post: #5 » Download Post**

I recently bought a MC28SP in HRC colours and want to bring it back to original so i ditched the Tyfa bodywork and cleaned the standard bodywork that came with the bike.
I noticed that the mufflers are original but the mounting point is cut away and wrapped with carbon looking paper.....
So now I am considering to make it stock again or go for Tyga exhausts.
I runs the HRC card now but can switch to standard if I swap a plug.
The last owner made a drawing with an explanation of where to switch what.
But I think that I also need a MC21 flywheel, other airbox and some high flow reeds to make it work right?

I also don't know how old the pistons are so I am also considering to do a top end rebuilt. What do you think?